The publishing arm of music label EMI has filed a $100 million lawsuit against Infospace earlier this year, alleging that the company and its subsidiaries Moviso and Premium Wireless Services have been underpaying royalties and selling ringtones for songs to which they hold no licensing rights. Infospace has now filed a brief with the court, denying most of the claims from EMI. See the brief filed in court below and you can download as a PDF as well. Too much jargon for me to go through, but I am sure some will find it useful.